IS-300A
6. Interface
6-6
Pin No. Name Description
27
NG2
(CAUTION)
Caution signal output pin. This pin is closed upon completion of
the welding sequence if the measured value is outside the
range set on the MONITOR SET screen. (In the case
CAUTION is set, the status will be “ERROR” depending on the
NG SIGNAL SELECT setting.) You can continue with your
welding task even if a caution signal is activated.
To cancel this caution output, input the reset or start signal. The
contact is rated at 24
V DC at 20
mA (semiconductor switch).
In the case the off time (OFF) is set, when CAUTION is output,
the signal is maintained until the next welding result is obtained.
(*1)
28
OUT1
29
OUT2
30
OUT3
31
OUT4
32
OUT5
Contact output pins. (semiconductor switch. The contact is
rated at 24
V DC at 20
mA.) The contact is open or closed
corresponding to the function.
Can be assigned to each pin.
END, COUNT ERROR, READY, STEP END, WELD SIGNAL,
GOOD, COUNT UP, OUT I, OUT II (Refer to 4.(7) OUTPUT
SELECT Screen and 6.(3) List of External Output Signals.)
33
OUT COM
Common pin for output pins.
This pin is the common pin for OUT1 to OUT5.
34
SOL POWER
Power input pins to drive the solenoid valve.
Input 120
V AC or 24
V AC/DC power.
35
*2
SOL COM COM pin for the solenoid valve.
36
*2
37
*2
SOL 1
SOL 2
Solenoid valve output pins. 36: SOL1; 37: SOL2
These pins are closed for the duration of the 1ST STAGE input.
Output between SQD and HOLD.
When the off time (OFF) is set, this pin is output between SQZ
and HOLD after the second sequence.
The contacts are rated at 120
V AC or 24
V AC/DC at 0.5
A
(semiconductor switches).
Use a solenoid valve with a current capacity of 0.5
A or less.
38
39
VOLT SENS
Secondary voltage input pins.
Connect to the electrodes of the welding head during
constant-power or constant-voltage control or when monitoring
the secondary voltage.
*1
When the sequence is stopped at (A), error (CAUTION) is not
displayed. It’s because the contents when stopped is displayed
on the Program Unit.
(A)
OFF
OFF
CAUTION
GOOD
GOOD
CAUTION
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